439155 has 16 divisors (see below), whose sum is σ = 780960. Its totient is φ = 234144.

The previous prime is 439141. The next prime is 439157. The reversal of 439155 is 551934.

It is not a de Polignac number, because 439155 - 2⁵ = 439123 is a prime.

It is a super-2 number, since 2×439155² = 385714228050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

439155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (439157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1492 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (48810).

2⁴³⁹¹⁵⁵ is an apocalyptic number.

439155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

439155 is a deficient number, since it is larger than the sum of its proper divisors (341805).

439155 is a wasteful number, since it uses less digits than its factorization.

439155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267 (or 3261 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 439155 is about 662.6877092568. The cubic root of 439155 is about 76.0103286978.

The spelling of 439155 in words is "four hundred thirty-nine thousand, one hundred fifty-five".